Velarion Records

Clean Air Act stationary source · ICIS-AIR WI0000005508700007

AHLSTROM NA SPECIALTY SOLUTIONS LLC, Kaukauna, WI: Clean Air Act compliance record, inspections, violations, penalties

AHLSTROM NA SPECIALTY SOLUTIONS LLC, at 600 THILMANY RD, Kaukauna in Ozaukee County, Wisconsin, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “Violation w/in 1 Year”. Ozaukee County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedAHLSTROM NA SPECIALTY SOLUTIONS LLC
ICIS-AIR IDWI0000005508700007
EPA facility registry ID110000420973
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)Violation w/in 1 Year
Address600 THILMANY RD, Kaukauna, WI 541302164
CountyOzaukee County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Paper manufacturing (NAICS 3221)
SIC code2621
EPA region05

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs AHLSTROM NA SPECIALTY SOLUTIONS LLC is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
May 6, 2026FCE On-SiteStateTitle V Permits
April 29, 2026PCE Off-SiteStateTitle V Permits
February 12, 2026PCE Off-SiteStateTitle V Permits
February 11, 2026PCE Off-SiteStateTitle V Permits
February 4, 2026PCE Off-SiteStateTitle V Permits
November 14, 2025PCE Off-SiteStateTitle V Permits
November 3, 2025PCE Off-SiteStateTitle V Permits
May 10, 2023FCE On-SiteStateTitle V Permits
September 14, 2021FCE On-SiteStateTitle V Permits
July 8, 2020PCE Off-SiteU.S. EPANational Emission Standards for Hazardous Air Pollutants (40 CFR Part 61)
April 30, 2020PCE Off-SiteU.S. EPAMACT Standards (40 CFR Part 63)
March 14, 2019FCE On-SiteStateTitle V Permits
March 19, 2018PCE On-SiteU.S. EPAMACT Standards (40 CFR Part 63); New Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 20, 2017PCE Off-SiteU.S. EPAState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
April 11, 2017PCE Off-SiteStateTitle V Permits
February 27, 2017FCE On-SiteStateTitle V Permits
January 17, 2017PCE Off-SiteU.S. EPAState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

DateWhat EPA recordedAgencyPrograms
November 13, 2025Earliest FRV determinationStateTitle V Permits
October 1, 2020HPV day-zero determinationStateNew Source Performance Standards
May 17, 2018HPV day-zero determinationStateMACT Standards (40 CFR Part 63)
March 28, 2018Earliest FRV determinationStateMACT Standards (40 CFR Part 63)
April 11, 2017Earliest FRV determinationStateTitle V Permits

Enforcement and penalties

1 formal enforcement actions since January 1, 2017, 1 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

DateWhat EPA recordedAgencyPenalty, as filed
January 17, 2023Civil Judicial ActionState$25,000

Informal enforcement

DateWhat EPA recordedAgency
December 5, 2025Warning LetterState
May 18, 2023Notice of ViolationU.S. EPA
December 4, 2020Notice of ViolationState
December 4, 2020Notice of ViolationState
January 20, 2020Notice of ViolationU.S. EPA
July 18, 2018Notice of ViolationState
April 13, 2017Warning LetterState

Stack tests

DateWhat EPA recordedAgency
February 23, 2026PassState
August 12, 2025PassState
July 29, 2025PassState
May 27, 2025PassState
February 24, 2025PassState
November 25, 2024PassState
August 6, 2024PassState
July 23, 2024PassState
July 23, 2024PassState
July 23, 2024PassState
August 9, 2023PassState
August 7, 2023PassState
August 1, 2022PassState
July 19, 2022PassState
June 6, 2022PassState
February 15, 2022PassState
August 4, 2021PassState
August 2, 2021PassState
June 14, 2021PassState
February 8, 2021PassState
September 17, 2020PassState
July 31, 2020FailState
February 11, 2020PassState
August 12, 2019PassState
June 4, 2019PassState
March 4, 2019PassState
September 18, 2018PassState
July 12, 2018PassState
June 26, 2018PassState
May 30, 2018PassState
March 27, 2018FailState
September 11, 2017PassState
August 10, 2017PassState
August 8, 2017PassState
April 25, 2017PassState
March 28, 2017FailState

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.

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